Get an API client ID


IRS application program interfaces (APIs) allow communication directly with the IRS for these products:

Before you can use an IRS API, you need a client ID.

To get an API client ID, follow these steps:

1. Review the product user guide

The user guide provides system requirements for the product:

2. Complete or modify an API client ID application

You must complete an application to request an API client ID.

To complete or modify your application, sign in or create an account.

Sign in or create account

If you don't have an account, have your photo ID ready to verify your identity.